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+<?php
+// vim: set et ts=4 sw=4 fdm=marker:
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, |
+// | Stig. S. Bakken, Lukas Smith |
+// | All rights reserved. |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
+// | API as well as database abstraction for PHP applications. |
+// | This LICENSE is in the BSD license style. |
+// | |
+// | Redistribution and use in source and binary forms, with or without |
+// | modification, are permitted provided that the following conditions |
+// | are met: |
+// | |
+// | Redistributions of source code must retain the above copyright |
+// | notice, this list of conditions and the following disclaimer. |
+// | |
+// | Redistributions in binary form must reproduce the above copyright |
+// | notice, this list of conditions and the following disclaimer in the |
+// | documentation and/or other materials provided with the distribution. |
+// | |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission. |
+// | |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
+// | POSSIBILITY OF SUCH DAMAGE. |
+// +----------------------------------------------------------------------+
+// | Author: Lukas Smith <smith@pooteeweet.org> |
+// +----------------------------------------------------------------------+
+//
+// $Id$
+//
+
+/**
+ * MDB2 MySQL driver
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Driver_mysqli extends MDB2_Driver_Common
+{
+ // {{{ properties
+ var $escape_quotes = "\\";
+
+ // }}}
+ // {{{ constructor
+
+ /**
+ * Constructor
+ */
+ function __construct()
+ {
+ parent::__construct();
+
+ $this->phptype = 'mysqli';
+ $this->dbsyntax = 'mysqli';
+
+ $this->supported['sequences'] = 'emulated';
+ $this->supported['indexes'] = true;
+ $this->supported['affected_rows'] = true;
+ $this->supported['transactions'] = false;
+ $this->supported['summary_functions'] = true;
+ $this->supported['order_by_text'] = true;
+ $this->supported['current_id'] = 'emulated';
+ $this->supported['limit_queries'] = true;
+ $this->supported['LOBs'] = true;
+ $this->supported['replace'] = true;
+ $this->supported['sub_selects'] = false;
+ $this->supported['auto_increment'] = true;
+ $this->supported['primary_key'] = true;
+
+ $this->options['default_table_type'] = null;
+ }
+
+ // }}}
+ // {{{ errorInfo()
+
+ /**
+ * This method is used to collect information about an error
+ *
+ * @param integer $error
+ * @return array
+ * @access public
+ */
+ function errorInfo($error = null)
+ {
+ if ($this->connection) {
+ $native_code = @mysqli_errno($this->connection);
+ $native_msg = @mysqli_error($this->connection);
+ } else {
+ $native_code = @mysqli_errno();
+ $native_msg = @mysqli_error();
+ }
+ if (is_null($error)) {
+ static $ecode_map;
+ if (empty($ecode_map)) {
+ $ecode_map = array(
+ 1004 => MDB2_ERROR_CANNOT_CREATE,
+ 1005 => MDB2_ERROR_CANNOT_CREATE,
+ 1006 => MDB2_ERROR_CANNOT_CREATE,
+ 1007 => MDB2_ERROR_ALREADY_EXISTS,
+ 1008 => MDB2_ERROR_CANNOT_DROP,
+ 1022 => MDB2_ERROR_ALREADY_EXISTS,
+ 1044 => MDB2_ERROR_ACCESS_VIOLATION,
+ 1046 => MDB2_ERROR_NODBSELECTED,
+ 1048 => MDB2_ERROR_CONSTRAINT,
+ 1049 => MDB2_ERROR_NOSUCHDB,
+ 1050 => MDB2_ERROR_ALREADY_EXISTS,
+ 1051 => MDB2_ERROR_NOSUCHTABLE,
+ 1054 => MDB2_ERROR_NOSUCHFIELD,
+ 1061 => MDB2_ERROR_ALREADY_EXISTS,
+ 1062 => MDB2_ERROR_ALREADY_EXISTS,
+ 1064 => MDB2_ERROR_SYNTAX,
+ 1091 => MDB2_ERROR_NOT_FOUND,
+ 1100 => MDB2_ERROR_NOT_LOCKED,
+ 1136 => MDB2_ERROR_VALUE_COUNT_ON_ROW,
+ 1142 => MDB2_ERROR_ACCESS_VIOLATION,
+ 1146 => MDB2_ERROR_NOSUCHTABLE,
+ 1216 => MDB2_ERROR_CONSTRAINT,
+ 1217 => MDB2_ERROR_CONSTRAINT,
+ );
+ }
+ if ($this->options['portability'] & MDB2_PORTABILITY_ERRORS) {
+ $ecode_map[1022] = MDB2_ERROR_CONSTRAINT;
+ $ecode_map[1048] = MDB2_ERROR_CONSTRAINT_NOT_NULL;
+ $ecode_map[1062] = MDB2_ERROR_CONSTRAINT;
+ } else {
+ // Doing this in case mode changes during runtime.
+ $ecode_map[1022] = MDB2_ERROR_ALREADY_EXISTS;
+ $ecode_map[1048] = MDB2_ERROR_CONSTRAINT;
+ $ecode_map[1062] = MDB2_ERROR_ALREADY_EXISTS;
+ }
+ if (isset($ecode_map[$native_code])) {
+ $error = $ecode_map[$native_code];
+ }
+ }
+ return array($error, $native_code, $native_msg);
+ }
+
+ // }}}
+ // {{{ escape()
+
+ /**
+ * Quotes a string so it can be safely used in a query. It will quote
+ * the text so it can safely be used within a query.
+ *
+ * @param string $text the input string to quote
+ * @return string quoted string
+ * @access public
+ */
+ function escape($text)
+ {
+ return @mysqli_escape_string($this->connection, $text);
+ }
+
+ // }}}
+ // {{{ quoteIdentifier()
+
+ /**
+ * Quote a string so it can be safely used as a table or column name
+ *
+ * Quoting style depends on which database driver is being used.
+ *
+ * MySQL can't handle the backtick character (<kbd>`</kbd>) in
+ * table or column names.
+ *
+ * @param string $str identifier name to be quoted
+ *
+ * @return string quoted identifier string
+ *
+ * @access public
+ * @internal
+ */
+ function quoteIdentifier($str)
+ {
+ return '`' . $str . '`';
+ }
+
+ // }}}
+ // {{{ beginTransaction()
+
+ /**
+ * Start a transaction.
+ *
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ * @access public
+ */
+ function beginTransaction()
+ {
+ $this->debug('starting transaction', 'beginTransaction');
+ if (!$this->supports('transactions')) {
+ return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+ 'beginTransaction: transactions are not in use');
+ }
+ if ($this->in_transaction) {
+ return MDB2_OK; //nothing to do
+ }
+ $result = $this->_doQuery('SET AUTOCOMMIT = 0', true);
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+ $this->in_transaction = true;
+ return MDB2_OK;
+ }
+
+ // }}}
+ // {{{ commit()
+
+ /**
+ * Commit the database changes done during a transaction that is in
+ * progress.
+ *
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ * @access public
+ */
+ function commit()
+ {
+ $this->debug('commit transaction', 'commit');
+ if (!$this->supports('transactions')) {
+ return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+ 'commit: transactions are not in use');
+ }
+ if (!$this->in_transaction) {
+ return $this->raiseError(MDB2_ERROR, null, null,
+ 'commit: transaction changes are being auto committed');
+ }
+ $result = $this->_doQuery('COMMIT', true);
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+ $result = $this->_doQuery('SET AUTOCOMMIT = 1', true);
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+ $this->in_transaction = false;
+ return MDB2_OK;
+ }
+
+ // }}}
+ // {{{ rollback()
+
+ /**
+ * Cancel any database changes done during a transaction that is in
+ * progress.
+ *
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ * @access public
+ */
+ function rollback()
+ {
+ $this->debug('rolling back transaction', 'rollback');
+ if (!$this->supports('transactions')) {
+ return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+ 'rollback: transactions are not in use');
+ }
+ if (!$this->in_transaction) {
+ return $this->raiseError(MDB2_ERROR, null, null,
+ 'rollback: transactions can not be rolled back when changes are auto committed');
+ }
+ $result = $this->_doQuery('ROLLBACK', true);
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+ $result = $this->_doQuery('SET AUTOCOMMIT = 1', true);
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+ $this->in_transaction = false;
+ return MDB2_OK;
+
+ }
+
+ // }}}
+ // {{{ connect()
+
+ /**
+ * Connect to the database
+ *
+ * @return true on success, MDB2 Error Object on failure
+ */
+ function connect()
+ {
+ if (is_object($this->connection)) {
+ if (count(array_diff($this->connected_dsn, $this->dsn)) == 0) {
+ return MDB2_OK;
+ }
+ $this->connection = 0;
+ }
+
+ if (!PEAR::loadExtension($this->phptype)) {
+ return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+ 'connect: extension '.$this->phptype.' is not compiled into PHP');
+ }
+
+ @ini_set('track_errors', true);
+ $php_errormsg = '';
+
+ if ($this->options['ssl'] === true) {
+ $init = @mysqli_init();
+ @mysqli_ssl_set(
+ $init,
+ empty($this->dsn['key']) ? null : $this->dsn['key'],
+ empty($this->dsn['cert']) ? null : $this->dsn['cert'],
+ empty($this->dsn['ca']) ? null : $this->dsn['ca'],
+ empty($this->dsn['capath']) ? null : $this->dsn['capath'],
+ empty($this->dsn['cipher']) ? null : $this->dsn['cipher']
+ );
+ if ($connection = @mysqli_real_connect(
+ $init,
+ $this->dsn['hostspec'],
+ $this->dsn['username'],
+ $this->dsn['password'],
+ $this->database_name,
+ $this->dsn['port'],
+ $this->dsn['socket']))
+ {
+ $connection = $init;
+ }
+ } else {
+ $connection = @mysqli_connect(
+ $this->dsn['hostspec'],
+ $this->dsn['username'],
+ $this->dsn['password'],
+ $this->database_name,
+ $this->dsn['port'],
+ $this->dsn['socket']
+ );
+ }
+
+ @ini_restore('track_errors');
+
+ if (!$connection) {
+ if (($err = @mysqli_connect_error()) != '') {
+ return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null, $err);
+ } else {
+ return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null, $php_errormsg);
+ }
+ }
+
+ $this->connection = $connection;
+ $this->connected_dsn = $this->dsn;
+ $this->connected_database_name = $this->database_name;
+ $this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype;
+
+ $this->supported['transactions'] = false;
+ if ($this->options['default_table_type']) {
+ switch (strtoupper($this->options['default_table_type'])) {
+ case 'BERKELEYDB':
+ $this->options['default_table_type'] = 'BDB';
+ case 'BDB':
+ case 'INNODB':
+ case 'GEMINI':
+ $this->supported['transactions'] = true;
+ break;
+ case 'HEAP':
+ case 'ISAM':
+ case 'MERGE':
+ case 'MRG_MYISAM':
+ case 'MYISAM':
+ break;
+ default:
+ $this->warnings[] = $default_table_type.
+ ' is not a supported default table type';
+ }
+ }
+
+ if ($this->options['use_transactions'] && !$this->supports('transactions')) {
+ $this->warnings[] = $this->options['default_table_type'].
+ ' is not a transaction-safe default table type; switched to INNODB';
+ $this->options['default_table_type'] = 'INNODB';
+ $this->supported['transactions'] = true;
+ }
+
+ return MDB2_OK;
+ }
+
+ // }}}
+ // {{{ disconnect()
+
+ /**
+ * Log out and disconnect from the database.
+ *
+ * @return mixed true on success, false if not connected and error
+ * object on error
+ * @access public
+ */
+ function disconnect($force = true)
+ {
+ if (is_object($this->connection)) {
+ if ($force) {
+ @mysqli_close($this->connection);
+ }
+ $this->connection = 0;
+ }
+ return MDB2_OK;
+ }
+
+ // }}}
+ // {{{ _doQuery()
+
+ /**
+ * Execute a query
+ * @param string $query query
+ * @param boolean $isManip if the query is a manipulation query
+ * @param resource $connection
+ * @param string $database_name
+ * @return result or error object
+ * @access protected
+ */
+ function _doQuery($query, $isManip = false, $connection = null, $database_name = null)
+ {
+ $this->last_query = $query;
+ $this->debug($query, 'query');
+ if ($this->options['disable_query']) {
+ if ($isManip) {
+ return 0;
+ }
+ return null;
+ }
+
+ if (is_null($connection)) {
+ $err = $this->connect();
+ if (PEAR::isError($err)) {
+ return $err;
+ }
+ $connection = $this->connection;
+ }
+ if (is_null($database_name)) {
+ $database_name = $this->database_name;
+ }
+
+ if ($database_name) {
+ if ($database_name != $this->connected_database_name) {
+ if (!@mysqli_select_db($connection, $database_name)) {
+ return $this->raiseError();
+ }
+ $this->connected_database_name = $database_name;
+ }
+ }
+
+ $function = $this->options['result_buffering']
+ ? 'mysqli_query' : 'mysqli_unbuffered_query';
+ $result = @$function($connection, $query);
+ if (!$result) {
+ return $this->raiseError();
+ }
+
+ if ($isManip) {
+ return @mysqli_affected_rows($connection);
+ }
+ return $result;
+ }
+
+ // }}}
+ // {{{ _modifyQuery()
+
+ /**
+ * Changes a query string for various DBMS specific reasons
+ *
+ * @param string $query query to modify
+ * @return the new (modified) query
+ * @access protected
+ */
+ function _modifyQuery($query, $isManip, $limit, $offset)
+ {
+ if ($limit > 0
+ && !preg_match('/LIMIT\s*\d(\s*(,|OFFSET)\s*\d+)?/i', $query)
+ ) {
+ $query = rtrim($query);
+ if (substr($query, -1) == ';') {
+ $query = substr($query, 0, -1);
+ }
+ if ($isManip) {
+ return $query . " LIMIT $limit";
+ } else {
+ return $query . " LIMIT $offset, $limit";
+ }
+ }
+ return $query;
+ }
+
+ // }}}
+ // {{{ prepare()
+
+ /**
+ * Prepares a query for multiple execution with execute().
+ * With some database backends, this is emulated.
+ * prepare() requires a generic query as string like
+ * 'INSERT INTO numbers VALUES(?,?)' or
+ * 'INSERT INTO numbers VALUES(:foo,:bar)'.
+ * The ? and :[a-zA-Z] and are placeholders which can be set using
+ * bindParam() and the query can be send off using the execute() method.
+ *
+ * @param string $query the query to prepare
+ * @param mixed $types array that contains the types of the placeholders
+ * @param mixed $result_types array that contains the types of the columns in
+ * the result set
+ * @return mixed resource handle for the prepared query on success, a MDB2
+ * error on failure
+ * @access public
+ * @see bindParam, execute
+ */
+ function &prepare($query, $types = null, $result_types = null)
+ {
+ $isManip = MDB2::isManip($query);
+ $query = $this->_modifyQuery($query, $isManip, $this->row_limit, $this->row_offset);
+ $this->debug($query, 'prepare');
+ $placeholder_type_guess = $placeholder_type = null;
+ $question = '?';
+ $colon = ':';
+ $position = 0;
+ while ($position < strlen($query)) {
+ $q_position = strpos($query, $question, $position);
+ $c_position = strpos($query, $colon, $position);
+ if ($q_position && $c_position) {
+ $p_position = min($q_position, $c_position);
+ } elseif ($q_position) {
+ $p_position = $q_position;
+ } elseif ($c_position) {
+ $p_position = $c_position;
+ } else {
+ break;
+ }
+ if (is_null($placeholder_type)) {
+ $placeholder_type_guess = $query[$p_position];
+ }
+ if (is_int($quote = strpos($query, "'", $position)) && $quote < $p_position) {
+ if (!is_int($end_quote = strpos($query, "'", $quote + 1))) {
+ $err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null,
+ 'prepare: query with an unterminated text string specified');
+ return $err;
+ }
+ switch ($this->escape_quotes) {
+ case '':
+ case "'":
+ $position = $end_quote + 1;
+ break;
+ default:
+ if ($end_quote == $quote + 1) {
+ $position = $end_quote + 1;
+ } else {
+ if ($query[$end_quote-1] == $this->escape_quotes) {
+ $position = $end_quote;
+ } else {
+ $position = $end_quote + 1;
+ }
+ }
+ break;
+ }
+ } elseif ($query[$position] == $placeholder_type_guess) {
+ if ($placeholder_type_guess == '?') {
+ break;
+ }
+ if (is_null($placeholder_type)) {
+ $placeholder_type = $query[$p_position];
+ $question = $colon = $placeholder_type;
+ }
+ $name = preg_replace('/^.{'.($position+1).'}([a-z0-9_]+).*$/si', '\\1', $query);
+ if ($name === '') {
+ $err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null,
+ 'prepare: named parameter with an empty name');
+ return $err;
+ }
+ $query = substr_replace($query, '?', $position, strlen($name)+1);
+ $position = $p_position + 1;
+ } else {
+ $position = $p_position;
+ }
+ }
+ $statement = @mysqli_prepare($this->connection, $query);
+ $class_name = 'MDB2_Statement_'.$this->phptype;
+ $obj =& new $class_name($this, $statement, $query, $types, $result_types);
+ return $obj;
+ }
+
+ // }}}
+ // {{{ replace()
+
+ /**
+ * Execute a SQL REPLACE query. A REPLACE query is identical to a INSERT
+ * query, except that if there is already a row in the table with the same
+ * key field values, the REPLACE query just updates its values instead of
+ * inserting a new row.
+ *
+ * The REPLACE type of query does not make part of the SQL standards. Since
+ * practically only MySQL implements it natively, this type of query is
+ * emulated through this method for other DBMS using standard types of
+ * queries inside a transaction to assure the atomicity of the operation.
+ *
+ * @access public
+ *
+ * @param string $table name of the table on which the REPLACE query will
+ * be executed.
+ * @param array $fields associative array that describes the fields and the
+ * values that will be inserted or updated in the specified table. The
+ * indexes of the array are the names of all the fields of the table. The
+ * values of the array are also associative arrays that describe the
+ * values and other properties of the table fields.
+ *
+ * Here follows a list of field properties that need to be specified:
+ *
+ * value:
+ * Value to be assigned to the specified field. This value may be
+ * of specified in database independent type format as this
+ * function can perform the necessary datatype conversions.
+ *
+ * Default:
+ * this property is required unless the Null property
+ * is set to 1.
+ *
+ * type
+ * Name of the type of the field. Currently, all types Metabase
+ * are supported except for clob and blob.
+ *
+ * Default: no type conversion
+ *
+ * null
+ * Boolean property that indicates that the value for this field
+ * should be set to null.
+ *
+ * The default value for fields missing in INSERT queries may be
+ * specified the definition of a table. Often, the default value
+ * is already null, but since the REPLACE may be emulated using
+ * an UPDATE query, make sure that all fields of the table are
+ * listed in this function argument array.
+ *
+ * Default: 0
+ *
+ * key
+ * Boolean property that indicates that this field should be
+ * handled as a primary key or at least as part of the compound
+ * unique index of the table that will determine the row that will
+ * updated if it exists or inserted a new row otherwise.
+ *
+ * This function will fail if no key field is specified or if the
+ * value of a key field is set to null because fields that are
+ * part of unique index they may not be null.
+ *
+ * Default: 0
+ *
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ */
+ function replace($table, $fields)
+ {
+ $count = count($fields);
+ $query = $values = '';
+ $keys = $colnum = 0;
+ for (reset($fields); $colnum < $count; next($fields), $colnum++) {
+ $name = key($fields);
+ if ($colnum > 0) {
+ $query .= ',';
+ $values.= ',';
+ }
+ $query.= $name;
+ if (isset($fields[$name]['null']) && $fields[$name]['null']) {
+ $value = 'NULL';
+ } else {
+ $value = $this->quote($fields[$name]['value'], $fields[$name]['type']);
+ }
+ $values.= $value;
+ if (isset($fields[$name]['key']) && $fields[$name]['key']) {
+ if ($value === 'NULL') {
+ return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null,
+ 'replace: key value '.$name.' may not be NULL');
+ }
+ $keys++;
+ }
+ }
+ if ($keys == 0) {
+ return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null,
+ 'replace: not specified which fields are keys');
+ }
+ $query = "REPLACE INTO $table ($query) VALUES ($values)";
+ $this->last_query = $query;
+ $this->debug($query, 'query');
+ return $this->_doQuery($query, true);
+ }
+
+ // }}}
+ // {{{ nextID()
+
+ /**
+ * returns the next free id of a sequence
+ *
+ * @param string $seq_name name of the sequence
+ * @param boolean $ondemand when true the seqence is
+ * automatic created, if it
+ * not exists
+ *
+ * @return mixed MDB2 Error Object or id
+ * @access public
+ */
+ function nextID($seq_name, $ondemand = true)
+ {
+ $sequence_name = $this->getSequenceName($seq_name);
+ $query = "INSERT INTO $sequence_name (".$this->options['seqcol_name'].") VALUES (NULL)";
+ $this->expectError(MDB2_ERROR_NOSUCHTABLE);
+ $result = $this->_doQuery($query, true);
+ $this->popExpect();
+ if (PEAR::isError($result)) {
+ if ($ondemand && $result->getCode() == MDB2_ERROR_NOSUCHTABLE) {
+ $this->loadModule('Manager');
+ // Since we are creating the sequence on demand
+ // we know the first id = 1 so initialize the
+ // sequence at 2
+ $result = $this->manager->createSequence($seq_name, 2);
+ if (PEAR::isError($result)) {
+ return $this->raiseError(MDB2_ERROR, null, null,
+ 'nextID: on demand sequence '.$seq_name.' could not be created');
+ } else {
+ // First ID of a newly created sequence is 1
+ return 1;
+ }
+ }
+ return $result;
+ }
+ $value = @mysqli_insert_id($this->connection);
+ if (is_numeric($value)) {
+ $query = "DELETE FROM $sequence_name WHERE ".$this->options['seqcol_name']." < $value";
+ $result = $this->_doQuery($query, true);
+ if (PEAR::isError($result)) {
+ $this->warnings[] = 'nextID: could not delete previous sequence table values from '.$seq_name;
+ }
+ }
+ return $value;
+ }
+
+ // }}}
+ // {{{ lastInsertID()
+
+ /**
+ * returns the autoincrement ID if supported or $id
+ *
+ * @param mixed $id value as returned by getBeforeId()
+ * @param string $table name of the table into which a new row was inserted
+ * @return mixed MDB2 Error Object or id
+ * @access public
+ */
+ function lastInsertID($table = null, $field = null)
+ {
+ $value = @mysqli_insert_id($this->connection);
+ if (!$value) {
+ return $this->raiseError();
+ }
+ return $value;
+ }
+
+ // }}}
+ // {{{ currID()
+
+ /**
+ * returns the current id of a sequence
+ *
+ * @param string $seq_name name of the sequence
+ * @return mixed MDB2 Error Object or id
+ * @access public
+ */
+ function currID($seq_name)
+ {
+ $sequence_name = $this->getSequenceName($seq_name);
+ $query = "SELECT MAX(".$this->options['seqcol_name'].") FROM $sequence_name";
+ return $this->queryOne($query, 'integer');
+ }
+}
+
+class MDB2_Result_mysqli extends MDB2_Result_Common
+{
+ // }}}
+ // {{{ fetchRow()
+
+ /**
+ * Fetch a row and insert the data into an existing array.
+ *
+ * @param int $fetchmode how the array data should be indexed
+ * @param int $rownum number of the row where the data can be found
+ * @return int data array on success, a MDB2 error on failure
+ * @access public
+ */
+ function &fetchRow($fetchmode = MDB2_FETCHMODE_DEFAULT, $rownum = null)
+ {
+ if (!is_null($rownum)) {
+ $seek = $this->seek($rownum);
+ if (PEAR::isError($seek)) {
+ return $seek;
+ }
+ }
+ if ($fetchmode == MDB2_FETCHMODE_DEFAULT) {
+ $fetchmode = $this->db->fetchmode;
+ }
+ if ($fetchmode & MDB2_FETCHMODE_ASSOC) {
+ $row = @mysqli_fetch_assoc($this->result);
+ if (is_array($row)
+ && $this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
+ ) {
+ $row = array_change_key_case($row, $this->db->options['field_case']);
+ }
+ } else {
+ $row = @mysqli_fetch_row($this->result);
+ }
+
+ if (!$row) {
+ if (is_null($this->result)) {
+ $err =& $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
+ 'fetchRow: resultset has already been freed');
+ return $err;
+ }
+ $null = null;
+ return $null;
+ }
+ if ($this->db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL) {
+ $this->db->_fixResultArrayValues($row, MDB2_PORTABILITY_EMPTY_TO_NULL);
+ }
+ if (!empty($this->values)) {
+ $this->_assignBindColumns($row);
+ }
+ if (!empty($this->types)) {
+ $row = $this->db->datatype->convertResultRow($this->types, $row);
+ }
+ if ($fetchmode === MDB2_FETCHMODE_OBJECT) {
+ $object_class = $this->db->options['fetch_class'];
+ if ($object_class == 'stdClass') {
+ $row = (object) $row;
+ } else {
+ $row = &new $object_class($row);
+ }
+ }
+ ++$this->rownum;
+ return $row;
+ }
+
+ // }}}
+ // {{{ _getColumnNames()
+
+ /**
+ * Retrieve the names of columns returned by the DBMS in a query result.
+ *
+ * @return mixed an associative array variable
+ * that will hold the names of columns. The
+ * indexes of the array are the column names
+ * mapped to lower case and the values are the
+ * respective numbers of the columns starting
+ * from 0. Some DBMS may not return any
+ * columns when the result set does not
+ * contain any rows.
+ *
+ * a MDB2 error on failure
+ * @access private
+ */
+ function _getColumnNames()
+ {
+ $columns = array();
+ $numcols = $this->numCols();
+ if (PEAR::isError($numcols)) {
+ return $numcols;
+ }
+ for ($column = 0; $column < $numcols; $column++) {
+ $column_info = @mysqli_fetch_field_direct($this->result, $column);
+ $columns[$column_info->name] = $column;
+ }
+ if ($this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
+ $columns = array_change_key_case($columns, $this->db->options['field_case']);
+ }
+ return $columns;
+ }
+
+ // }}}
+ // {{{ numCols()
+
+ /**
+ * Count the number of columns returned by the DBMS in a query result.
+ *
+ * @return mixed integer value with the number of columns, a MDB2 error
+ * on failure
+ * @access public
+ */
+ function numCols()
+ {
+ $cols = @mysqli_num_fields($this->result);
+ if (is_null($cols)) {
+ if (is_null($this->result)) {
+ return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
+ 'numCols: resultset has already been freed');
+ }
+ return $this->db->raiseError();
+ }
+ return $cols;
+ }
+
+ // }}}
+ // {{{ free()
+
+ /**
+ * Free the internal resources associated with result.
+ *
+ * @return boolean true on success, false if result is invalid
+ * @access public
+ */
+ function free()
+ {
+ @mysqli_free_result($this->result);
+ $this->result = null;
+ return MDB2_OK;
+ }
+}
+
+class MDB2_BufferedResult_mysqli extends MDB2_Result_mysqli
+{
+ // }}}
+ // {{{ seek()
+
+ /**
+ * seek to a specific row in a result set
+ *
+ * @param int $rownum number of the row where the data can be found
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ * @access public
+ */
+ function seek($rownum = 0)
+ {
+ if ($this->rownum != ($rownum - 1) && !@mysqli_data_seek($this->result, $rownum)) {
+ if (is_null($this->result)) {
+ return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
+ 'seek: resultset has already been freed');
+ }
+ return $this->db->raiseError(MDB2_ERROR_INVALID, null, null,
+ 'seek: tried to seek to an invalid row number ('.$rownum.')');
+ }
+ $this->rownum = $rownum - 1;
+ return MDB2_OK;
+ }
+
+ // }}}
+ // {{{ valid()
+
+ /**
+ * check if the end of the result set has been reached
+ *
+ * @return mixed true or false on sucess, a MDB2 error on failure
+ * @access public
+ */
+ function valid()
+ {
+ $numrows = $this->numRows();
+ if (PEAR::isError($numrows)) {
+ return $numrows;
+ }
+ return $this->rownum < ($numrows - 1);
+ }
+
+ // }}}
+ // {{{ numRows()
+
+ /**
+ * returns the number of rows in a result object
+ *
+ * @return mixed MDB2 Error Object or the number of rows
+ * @access public
+ */
+ function numRows()
+ {
+ $rows = @mysqli_num_rows($this->result);
+ if (is_null($rows)) {
+ if (is_null($this->result)) {
+ return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
+ 'numRows: resultset has already been freed');
+ }
+ return $this->raiseError();
+ }
+ return $rows;
+ }
+}
+
+class MDB2_Statement_mysqli extends MDB2_Statement_Common
+{
+ // {{{ _execute()
+
+ /**
+ * Execute a prepared query statement helper method.
+ *
+ * @param mixed $result_class string which specifies which result class to use
+ * @param mixed $result_wrap_class string which specifies which class to wrap results in
+ * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
+ * @access private
+ */
+ function &_execute($result_class = true, $result_wrap_class = false)
+ {
+ $isManip = MDB2::isManip($this->query);
+ $this->db->last_query = $this->query;
+ $this->db->debug($this->query, 'execute');
+ if ($this->db->getOption('disable_query')) {
+ if ($isManip) {
+ $return = 0;
+ return $return;
+ }
+ $null = null;
+ return $null;
+ }
+
+ $connected = $this->db->connect();
+ if (PEAR::isError($connected)) {
+ return $connected;
+ }
+
+ if (!empty($this->values)) {
+ $parameters = array(0 => $this->statement, 1 => '');
+ $i = 0;
+ foreach ($this->values as $parameter => $value) {
+ $type = array_key_exists($parameter, $this->types) ? $this->types[$parameter] : null;
+ $close = false;
+ if ($type == 'clob' || $type == 'blob') {
+ if (preg_match('/^(\w+:\/\/)(.*)$/', $value, $match)) {
+ $close = true;
+ if ($match[1] == 'file://') {
+ $value = $match[2];
+ }
+ $value = @fopen($value, 'r');
+ }
+ }
+ if (is_resource($value)) {
+ while (!@feof($value)) {
+ $data = @fread($value, $this->db->options['lob_buffer_length']);
+ @mysqli_stmt_send_long_data($this->statement, $i, $data);
+ }
+ if ($close) {
+ @fclose($value);
+ }
+ $parameters[] = null;
+ $parameters[1].= 'b';
+ } elseif ($type == 'clob' || $type == 'blob') {
+ do {
+ $data = substr($value, 0, $this->db->options['lob_buffer_length']);
+ $value = substr($value, $this->db->options['lob_buffer_length']);
+ @mysqli_stmt_send_long_data($this->statement, $i, $data);
+ } while ($value);
+ $parameters[] = null;
+ $parameters[1].= 'b';
+ } else {
+ $parameters[] = $this->db->quote($value, $type, false);
+ $parameters[1].= $this->db->datatype->mapPrepareDatatype($type);
+ }
+ ++$i;
+ }
+ $result = @call_user_func_array('mysqli_stmt_bind_param', $parameters);
+ if ($result === false) {
+ $err =& $this->db->raiseError();
+ return $err;
+ }
+ }
+
+ if (!@mysqli_stmt_execute($this->statement)) {
+ $err =& $this->db->raiseError();
+ return $err;
+ }
+
+ if (!mysqli_stmt_result_metadata($this->statement)) {
+ $result = @mysqli_stmt_affected_rows($this->statement);
+ return $result;
+ }
+
+ if ($this->db->options['result_buffering']) {
+ mysqli_stmt_store_result($this->statement);
+ }
+
+ $result &= $this->db->_wrapResult($result, $this->types,
+ $result_class, $result_wrap_class);
+ return $result;
+ }
+
+ // }}}
+
+ // }}}
+
+ // }}}
+ // {{{ free()
+
+ /**
+ * Release resources allocated for the specified prepared query.
+ *
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ * @access public
+ */
+ function free()
+ {
+ if (!@mysqli_stmt_close($this->statement)) {
+ return $this->db->raiseError();
+ }
+ return MDB2_OK;
+ }
+}
+?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 16:28:35 +0000